M42 lens to Pentax PK adapter - $49

FOR PENTAX PK Camera SCREW MOUNT M42 LENS ADAPTER

Description:

* you can use this little adaptor converts the bayonet fitting on the camera body to a screw fitting allowing you to use any screw (M42) lens
* (Third-party) M42 Lens Adapter Ring for Pentax K mount
* Mount all M42 lens on Pentax cameras
* Compatible Lens: M42 lens
* Dimensions: 48.5mm
* Made of metal (not plastic)
* Black in color

Compatibility:

* for K200D, K110D, K100D, K20D, K10D, *ist series
* fit FOR K-1000, K, MV, MG, KX, KM, ME...Etc & NEWER RICOH PENTAX K MOUNT 35MM